Remove the commented-out snapshot plugin api lines
Remove the commented-out snapshot plugin api lines

Rely on bazlets README documentation for how to use a SNAPSHOT version.

Change-Id: I8e312915bb7e0706cc2736f30858b30ddb90c6d4

GerritCodeReview/plugins_admin-console,GerritCodeReview/plugins_admin-console,GerritCodeReview/plugins_admin-console